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Mary Mcguire — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Cook, Illinois
Our Model Tree links this Mary Mcguire across the 1920, 1930 and 1940 US Censuses in Cook, Illinois (XGBoost, ~Confirmed) — first a head (b.~1873), then head of a 5-person household.
Age 57
b. ~1873
Female
Head
Born: Illinois
Widowed
1930 Census Record Details
| Census Year | 1930 |
| Location | Cook, Illinois |
| Surname | McGuire |
| Given Name | Mary A |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 57 |
| Marital Status | Widowed |
| Birthplace | Illinois |
| Father's Birthplace | South Ireland |
| Mother's Birthplace | South Ireland |
| Additional Details | |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 7500 |
| Radio Set | R |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Chicago |
| Est. Birth Year | ~1873 |
Household Members
Census records only state relationship to the household head.
Pairwise kinship is derived (~90–95% accurate), not recorded.
Step/blended families and boarders can break it.
5 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Julia Mcguire | Daughter | — | 28 | ~1902 |
| Mary Mcguire | Head | — | 57 | ~1873 |
| Helen Sullivan | Other | — | 27 | ~1903 |
| Francis Mcguire | Son | — | 29 | ~1901 |
| Luke Mcguire | Son | — | 34 | ~1896 |
Census Appearances
1920
Cook, Illinois
Head, age 46
Cook, Illinois · implied b. ~1874 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McGuire |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 46 |
| Marital Status | Widowed |
| Birthplace | Illinois |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Supervisor |
| Industry | Telephone Co |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Head, age 57
Cook, Illinois · implied b. ~1873 — 5 household members
| Surname | McGuire |
| Given Name | Mary A |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 57 |
| Marital Status | Widowed |
| Birthplace | Illinois |
| Father's Birthplace | South Ireland |
| Mother's Birthplace | South Ireland |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 7500 |
| Radio Set | R |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Other, age 70
Cook-County, Illinois · implied b. ~1870 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McGuire |
| Given Name | Mary |
| Relationship to Head | Cousin |
| Sex | F |
| Color / Race | White |
| Age | 70 |
| Marital Status | Widowed |
| Birthplace | Illinois |
| 1935 Residence (City) | CHICAGO |
| 1935 Residence (County) | COOK |
| Class of Worker | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
Model Tree
An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Our Model Tree links Mary Mcguire across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Mcguire
Head · 1930 · age 57 · b. ~1873 · Illinois
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Cook, Illinois
Open full size
1930 US Federal Census — Cook, Illinois
Page Contents
50 people indexed on this census page (ia:1930:illinoiscensus00reel428:0959)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Jack C Mann | 7 | son | — | Illinois |
| 2 | Robert W Mann | 5 | son | — | Illinois |
| 3 | Dorothy Ewald | 19 | servant | Servant | Illinois |
| 4 | Albert J Backman | 49 | Head | Dentist | Illinois |
| 5 | Mathilda G Backman | 46 | Wife-H | — | Illinois |
| 6 | Estelle Backman | 21 | daughter | Dietician | Illinois |
| 7 | Sylvester A Backman | 14 | son | — | Illinois |
| 8 | Albert H Herbold | 49 | Head | Hog Salesman | Illinois |
| 9 | Teresa A Herbold | 47 | Wife | — | Illinois |
| 10 | Helen L Herbold | 21 | daughter | Stenographer | Illinois |
| 11 | Jean L Herbold | 17 | daughter | — | Illinois |
| 12 | Harry A Herbold | 13 | son | — | Illinois |
| 13 | Suzanne O'Donnell | 51 | sister-in-law | Seamstress | Illinois |
| 14 | Mathilda Sullivan | 55 | Head | — | Canada English |
| 15 | James Griffin | 26 | nephew | Stationary Engineer | Michigan |
| 16 | Olive O'Reilly | 28 | niece | Stenographer | Canada English |
| 17 | Clara A Schneider | 51 | Head | — | Illinois |
| 18 | Rose-Ab Schmidt | 36 | Niece | Clerical | Illinois |
| 19 | Henry Henninger | 53 | Head | Auditor | Illinois |
| 20 | Daisy Henninger | 43 | Wife-H | — | Poland |
| 21 | William Hengevather | 31 | Head | Fireman | Ohio |
| 22 | Frances Hengevather | 31 | Wife | — | Michigan |
| 23 | Patricia Hengevather | 6 | daughter | — | Illinois |
| 24 | William J Hengevather | 1 | son | — | Illinois |
| 25 | Fred J Mangles | 27 | R | Assistant Branch Manager | Illinois |
| 26 | Althea J Mangles | 27 | Wife-H | — | Tennessee |
| 27 | Patricia M Mangles | 1 | daughter | — | Illinois |
| 28 | William H Forohy | 45 | Head | Salesman | Illinois |
| 29 | Laura Forohy | 38 | Wife | — | Illinois |
| 30 | William Scofield | 54 | Head | Fireman | Illinois |
| 31 | Theresa Scofield | 39 | Wife | — | Austria |
| 32 | Leonard Johnson | 28 | roomer | Salesman | Illinois |
| 33 | Charles A Smith | 41 | Head | Electrician | Illinois |
| 34 | Ruth A Smith | 32 | wife-H | — | Illinois |
| 35 | Charles P Smith | 12 | son | — | Illinois |
| 36 | Harold B Elliott | 38 | Head | Clerical | Illinois |
| 37 | Ellen M Elliott | 37 | Wife | — | Illinois |
| 38 | Lila J Elliott | 2 | daughter | — | Illinois |
| 39 | John A O'Brien | 35 | Head | Inspector | Nebraska |
| 40 | Lauretta O'Brien | 34 | Wife | — | Illinois |
| 41 | Barbara J O'Brien | 2 | daughter | — | Illinois |
| 42 | Delia Mcnamara | 28 | servant | Servant | South Ireland |
| 43 | John J Finnegan | 42 | Head | Salesman | Illinois |
| 44 | Rosa E Finnegan | 70 | mother | — | Canada Eng |
| 45 | Mary Finnegan | 39 | sister | Clerical | Illinois |
| 46 | Mary A Mcguire THIS PERSON | 57 | Head | — | Illinois |
| 47 | Luke Mcguire | 34 | son | Office | Illinois |
| 48 | Francis Mcguire | 29 | son | — | Illinois |
| 49 | Julia A Mcguire | 28 | daughter | — | Illinois |
| 50 | Helen Sullivan | 27 | niece | Stenographer | Oklahoma |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 United States Federal Census (NARA). Our Model Tree links this person across census decades using XGBoost-based record linkage, with per-link confidence scores. Household corroboration strengthens the signal when co-residents appear on the same census pages in multiple years.
Source: National Archives and Records Administration (NARA)